通过溶胶-凝胶法制备了Cu-Fe-TiO₂/凹凸棒催化剂，并用FT-IR、XRD和SEM技术对其结构进行表征。采用电絮凝-催化氧化联合工艺对酱油废水进行处理，通过单因素法优化了各反应条件。结果表明，催化剂主要呈棒状或块状结构，TiO₂主要分布在凹凸棒表面或层间，部分Cu、Fe掺入了TiO₂晶格，Cu-Fe-TiO₂/凹凸棒催化剂复合成功。在电压为25 V、pH为8、反应时间为30 min的情况下进行电絮凝后，调节废水pH为2左右，加入5 mL 0.05 mol/L的K₂S₂O₈，与1 g/L自制的催化剂进行催化氧化处理，出水与原废水相比，脱色率达99.8%，COD去除率达69.5%，处理效果较好。

Cu-Fe-TiO₂/attapulgite catalyst is prepared by sol-gel method,and its structure is characterized through FT-IR,XRD and SEM.The catalyst is used in the treatment of sauce wastewater by electrocoagulation combined with catalytic oxidation,and the reaction conditions are optimized by using single factor experiment.The results show that the catalyst shows mainly rod-like or block-like structure,with TiO₂ distributing on the surface or in the interlayers of the attapulgite.Part of Cu and Fe is doped into the lattice of TiO₂,suggesting that Cu-Fe-TiO₂/attapulgite catalyst is composited successfully.Sauce wastewater is pretreated by electrocoagulation under an electrolytic voltage of 25 V and pH 8 for 30 min,and then treated by using catalytic oxidation under the conditions as follows:pH is around 2,5 mL of 0.05 mol·L^-1 K₂S₂O₈ is added,and 1 g·L^-1 of self-made catalyst is used.The decolorization rate and COD remove rate of effluent water reach 99.8% and 69.5%,respectively.

杨天天(1997-),本科,研究方向为水环境生态修复与废水处理,739507316@qq.com